HVAC/R

What Does a Commercial Refrigeration Technician Do? Here’s What You Need to Know

Commercial refrigeration isn’t much different from regular refrigeration. The word “commercial” is placed in front of it when it’s used in small convenience stores, large supermarkets, restaurants and food processing plants. The invention of commercial refrigeration actually revolutionized the way we live when it was invented a little more than 100 years ago, radically advancing […]

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The Four Types of Refrigeration Systems You Need to Know

One of the first things every HVAC/R student learns is that air conditioning units don’t create cool air. What they actually do is remove heat out of a given area. All refrigeration systems work by transferring heat around, moving it from a designated area to somewhere else, thus cooling that designated area off and reversing […]

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How Was Refrigeration Discovered?

Modern refrigeration is a big deal, and it’s not a stretch to say it’s one of humanity’s greatest achievements. It prevents bacteria, yeast and mold, which extends the life of food items, medical specimens and chemicals. Refrigeration technology has improved food safety, expanded seasonal food production, fueled medical research, refined print production and powered industrial […]

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6 Reasons to Become an HVAC Technician

A lifelong career in heating, ventilation and air conditioning (HVAC) is waiting for you right now. We need more men and women to fill positions in the manufacturing and construction industries.  Why? The skilled labor shortage in the United States is hitting these industries hard. Not enough people are entering them to fill jobs in […]

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What Does a Heat Exchanger Do in an HVAC System?

Any HVAC technician worth their salt will tell you that HVAC equipment doesn’t create cold energy. Rather, it transfers thermal (heat) energy from one location to another. Heat flows from areas of high temperature to areas of low temperature, according to the Second Law of Thermodynamics. The HVAC system is responsible for reversing this natural […]

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What Is a Cooling Load?

The process of cooling doesn’t involve pumping cool air into a room—it’s all about removing the heat. When an HVAC technician installs an HVAC system into a building, they need to figure out how much cooling a building actually needs. This is call the cooling load. So what’s it all about? Let’s dive into how […]

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